ChromaPure Professional and Colorimetry Research CR-300RH Reference Spectroradiometer

There are two color analyzers that professionals and dedicated enthusiasts generally seek: a reference spectroradiometer for the last word in colorimetric accuracy and a professional quality colorimeter. Unfortunately, such devices are not cheap. The Photo Research and Minolta reference spectros start at about $15,000 and go up to $30,000 +.

There is a new entry to the reference spectroradiometer market, the Colorimtry Research CR-300RH. This is the big brother to the CR-250 that we tested previously. We found that the CR-250 performs similarly to the the JETI spectros, in all areas except for speed. These are only sub-$10,000 spectros on the market.

The CR-300RH is considerably more expensive because it offers twice the resolution of the CR-250.



The CR-250 is one of the most affordable reference spectroradiometers available. Just mount on a tripod facing towards the source, connect to ChromaPure Professional, and then use as you would any other color analyzer. This is the highest resolution reference spectro available for under $30,000. With an optical resolution of 2nm, the CR-300 is capable of accurately measuring the most demanding light sources.


Colorimetry Research CR-300RH
Detector CMOS image sensor, 512 pixels
Spectral Range 380 – 780 nm
Spectral Bandwidth 2 nm
Spectral Accuracy ± 0.3 nm
Spectral Resolution 0.8 nm / pixel
Luminance Range 0.17 cd/m2 to 154,000 cd/m2
Luminance Accuracy ±2 % Ω
Luminance Repeatability ≤1% Ω
Chromaticity Accuracy ± 0.0015 x, y Ω
Chromaticity Repeatability 0.0005 x, y Ω
Polarization Error ≤ 0.5 %
Digital Resolution 16 bits
Objective Lens 50 mm, 60 mm, 75 mm, 100 mm
Custom Synchronization 10 - 10000 Hz
Exposure Time Range 0.04 to 30 seconds
Power Requirements 5V, 120 mA (600 mW) via USB 2.0
Interface USB 2.0, Ethernet
Weight / Mass 2.5 pound (1.134 kg)


Free shipping on all CR-300RH orders

CR-300-RH with ChromaPure Professional software.

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